Shulou(Shulou.com)06/02 Report--

Today, I will talk to you about the role of mounting cloud disks on servers. Many people may not know much about it. In order to make you understand better, the editor has summarized the following contents for you. I hope you can gain something according to this article.

The cloud disk mounted to the server is mainly used to store data. For example, cloud disk is a product that provides elastic expansion, stability, reliability and low latency persistent data storage service for the CVM, and can be used as a stand-alone hard disk.

Using cloud disk can save money.

If have a cloud server, still have a few days to expire, want to save data, but do not want to renew again. You can purchase an elastic cloud disk and store the data on the cloud disk. The cloud disk provides 99.999999% data reliability. It is recommended to make another snapshot of the core data to unsubscribe from the server.

Free transfer of account

For example, if there are two CVMs in the same regional availability zone under the account, you need to transfer the data of one instance A data disk to another instance B, and take advantage of the feature that elastic cloud disks can be unmounted and mounted freely in the same regional availability zone. First, mount the elastic cloud disk to instance A, then store the data to the elastic cloud disk, uninstall the elastic cloud disk from instance A, and then mount the elastic cloud disk to instance B. Complete the data transfer.

Offline data analysis

There are two CVM, one for testing and writing code, one for web website, and one for web server to generate a large number of logs. You need to conduct offline analysis, purchase two cloud disks and mount one to the web server server. The log directory points to the elastic cloud disk letter. When you need to uninstall the cloud disk containing logs, mount the cloud disk containing logs to Hadoop and SPARK data analysis servers for analysis. The maximum size of cloud disk is 4TB. If it is not enough, 10 cloud disks are allowed to be mounted on a single server.

Carry out capacity expansion

After purchasing a server with 4 cores of 8GB memory and a local disk of 100GB, it is found that there is not enough disk space to expand the capacity of the local disk. Elastic cloud disks can be mounted to local servers. You can also configure LVM logical volumes and provide disks the size of 10TB and 20TB to meet the huge storage needs such as enterprise mailboxes and NFS services.

The product is cost-effective.

You can purchase 500GB's SSD cloud storage and deploy high IO services such as Mysql. Purchase additional 100GB elastic cloud storage to store sql log files and support flexible expansion at any time, which is a cost-effective choice.

Cloud storage disks are mounted and used in conjunction with CVMs in the same cluster to achieve data storage and copy functions, effectively saving manual deployment costs. Three copies of data are written in real time, which can ensure that any copy can recover quickly in case of failure and effectively avoid physical security threats.

After reading the above, do you have any further understanding of the role of the cloud disk mounted on the server? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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